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Its quite weird. At first i see that it is spinning anti-clockwise then i read some text when i go back again, it is spinning clockwise and i can't perceive it to turn ACW. So i go read some more and then it turn ACW. But i cannot control how i perceive it no matter how hard i try (I even got a slight headache looking at it). I have to leave it and come back to the image to get it change.
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